Chrono- is a prefix that means time, and can be used in a variety of words to convey a concept related to time. There are a variety of synonyms that can be used instead of chrono- depending on the context of the word being used. Some of the common synonyms for chrono- include "tempo-", "hor-", "tim-", and "chron-", which can all be used to describe time or timing in different ways. Whether it's timing in music or the aging of a person, there are many words that utilize these synonyms to convey the idea of time. The choice of synonym depends on the nuance of the exact meaning intended.